TY  - GEN
AU  - Yaglom,A.M.
AU  - Gordon,Basil
AU  - �I�Aglom,I.M.
TI  - Challenging mathematical problems with elementary solutions
U1  - 510 
PY  - 1964///
CY  - San Francisco
PB  - Holden-Day
KW  - Combinations
KW  - Probabilities
ER  -